{"answers":{"affected":"1 open source package ship an affected version, including @k18k/entrypoint-sdk-darwin-arm64.","exploited":"There is no known exploitation of MAL-2026-18243 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-18243 is a malicious package in @k18k/entrypoint-sdk-darwin-arm64, published on 23 Oct 2026."},"fix_prompt":"MAL-2026-18243 is a malicious package: @k18k/entrypoint-sdk-darwin-arm64 (npm). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-18243/ (Markdown: https://insights.sbomify.com/MAL-2026-18243/index.md)","id":"MAL-2026-18243","markdown":"https://insights.sbomify.com/MAL-2026-18243/index.md","name":"MAL-2026-18243","record":{"aliases":["GHSA-8wf7-8825-99q7"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"@k18k/entrypoint-sdk-darwin-arm64 is a platform-specific native artifact package (darwin-arm64 variant) typical of the optionalDependencies pattern used by Node tooling that ships prebuilt binaries per OS/arch. The small file count is consistent with that distribution shape. No lifecycle scripts, install-time network fetches, credential reads, exfiltration endpoints, or other installer-harming behaviors were observed in the package contents.\n\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.","ecosystems":["npm"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in @k18k/entrypoint-sdk-darwin-arm64 (npm)","id":"MAL-2026-18243","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":[],"last_affected":[],"package":"@k18k/entrypoint-sdk-darwin-arm64","purl":"pkg:npm/%40k18k/entrypoint-sdk-darwin-arm64","source":"MAL-2026-18243"}],"products":null,"published":"2026-10-23","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-18243/"}